If x+y=10 and x - y = 11, what is the value of x - 72

asked Sep 11, 2021 141k views

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Answer:

$x+y=10\\\\x-y=11\\-y=11-x\\y=-11+x\\\\x+(-11+x)=10\\x-11+x=10\\2x=21\\x=10.5$

$x-72\\10.5-72\\-61.5$

The answer is -61.5

Anand Rajagopal answered Sep 14, 2021

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